| MD | Players | Club | Nationality | DOB | A(D) |
|---|---|---|---|---|---|
| 06-May-2023 |  Corne Rahl | Sharks | South Africa | 27-May-2002 | 20(344) |
| 06-May-2023 | Oli Smith | Glasgow Warriors | Scotland | 07-Aug-2000 | 22(272) |
| 05-May-2023 |  David McCann | Ulster | Ireland | 13-Jun-2000 | 22(326) |
| 05-May-2023 | Shamus Hurley-Langton | Connacht | New Zealand | 22-Apr-2000 | 23(12) |
| 05-May-2023 | Cian Prendergast | Connacht | Ireland | 23-Feb-2000 | 23(71) |
| 06-May-2023 | Rory Darge | Glasgow Warriors | Scotland | 23-Feb-2000 | 23(72) |
| 06-May-2023 |  Michael Milne | Leinster | Ireland | 05-Feb-2000 | 23(90) |
| 06-May-2023 | Evan Roos | Western Stormers | South Africa | 21-Jan-2000 | 23(105) |
| 06-May-2023 |  Jack Crowley | Munster | Ireland | 13-Jan-2000 | 23(113) |
| 05-May-2023 | Niall Murray | Connacht | Ireland | 13-Oct-1999 | 23(204) |
| 06-May-2023 | Scott Penny | Leinster | Ireland | 22-Sep-1999 | 23(226) |
| 06-May-2023 | Elrigh Louw | Bulls | South Africa | 20-Sep-1999 | 23(228) |
| 06-May-2023 | Ryan Baird | Leinster | Ireland | 26-Jul-1999 | 23(284) |
| 13-May-2023 | Ben Healy | Munster | Scotland | 29-Jun-1999 | 23(318) |
| 06-May-2023 | Marnus Potgieter | Sharks | South Africa | 20-Jun-1999 | 23(320) |
| 06-May-2023 | Angelo Davids | Western Stormers | South Africa | 01-Jun-1999 | 23(339) |
| 06-May-2023 | Harry Byrne | Leinster | Ireland | 22-Apr-1999 | 24(14) |
| 13-May-2023 | Craig Casey | Munster | Ireland | 19-Apr-1999 | 24(24) |
| 06-May-2023 | Boeta Chamberlain | Sharks | South Africa | 22-Feb-1999 | 24(73) |
| 06-May-2023 | David Kriel | Bulls | South Africa | 15-Feb-1999 | 24(80) |
| 13-May-2023 | John Hodnett | Munster | England | 10-Jan-1999 | 24(123) |
| 06-May-2023 | Tom Jordan | Glasgow Warriors | Scotland | 18-Sep-1998 | 24(230) |
| 06-May-2023 | Dan Sheehan | Leinster | Ireland | 17-Sep-1998 | 24(231) |
| 06-May-2023 | Vincent Tshituka | Sharks | South Africa | 10-Sep-1998 | 24(238) |
| 05-May-2023 | James Hume | Ulster | Ireland | 07-Sep-1998 | 24(240) |
| 05-May-2023 | Michael Lowry | Ulster | Ireland | 20-Aug-1998 | 24(258) |
| 06-May-2023 | Diarmund Barron | Munster | Ireland | 06-Aug-1998 | 24(273) |
| 06-May-2023 | Ruan Nortje | Bulls | South Africa | 25-Jul-1998 | 24(285) |
| 06-May-2023 | Matt Fagerson | Glasgow Warriors | Scotland | 16-Jul-1998 | 24(294) |
| 06-May-2023 | Damian Willemse | Western Stormers | South Africa | 07-May-1998 | 24(364) |
| 06-May-2023 | Ruan Vermaak | Bulls | South Africa | 01-May-1998 | 25(5) |
| 13-May-2023 | Ben-Jason Dixon | Western Stormers | South Africa | 29-Apr-1998 | 25(14) |
| 06-May-2023 | Caelan Doris | Leinster | Ireland | 02-Apr-1998 | 25(34) |
| 05-May-2023 | Mackenzie Hansen | Connacht | Ireland | 27-Mar-1998 | 25(39) |
| 06-May-2023 | Stafford McDowell | Glasgow Warriors | Scotland | 24-Feb-1998 | 25(71) |
| 13-May-2023 | Tommy O'Brien | Leinster | Ireland | 20-Feb-1998 | 25(82) |
| 06-May-2023 | Morne Smith | Bulls | South Africa | 30-Jan-1998 | 25(96) |
| 06-May-2023 | Aphelele Fassi | Sharks | South Africa | 23-Jan-1998 | 25(103) |
| 13-May-2023 | Ronan Kelleher | Leinster | Ireland | 24-Jan-1998 | 25(109) |
| 06-May-2023 | Gavin Coombes | Munster | Ireland | 11-Dec-1997 | 25(146) |
| 06-May-2023 | Ciaran Frawley | Leinster | Ireland | 04-Dec-1997 | 25(153) |
| 06-May-2023 | Ruben van Heerden | Western Stormers | South Africa | 27-Oct-1997 | 25(191) |
| 06-May-2023 | Hacjivah Dayimani | Western Stormers | South Africa | 23-Sep-1997 | 25(225) |
| 05-May-2023 | Robert Baloucoune | Ulster | Ireland | 19-Aug-1997 | 25(259) |
| 06-May-2023 | Calvin Nash | Munster | Ireland | 08-Aug-1997 | 25(271) |
| 06-May-2023 | Immanuel Libbok | Western Stormers | South Africa | 15-Jul-1997 | 25(295) |
| 06-May-2023 | Jordan Larmour | Leinster | Ireland | 10-Jun-1997 | 25(330) |
| 06-May-2023 | Embrose Papier | Bulls | South Africa | 25-Apr-1997 | 26(11) |
| 06-May-2023 | Gerhardus Steenkamp | Bulls | South Africa | 09-Apr-1997 | 26(27) |
| 06-May-2023 | Stedman Gans | Bulls | South Africa | 19-Mar-1997 | 26(48) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).